Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027230 |
Frozen-Droplets Aggregation at Temperature Below-40 degrees C | |
Analia Pedernera, Debora1; Avila, Eldo E.1,2 | |
2018-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:2页码:1244-1252 |
文章类型 | Article |
语种 | 英语 |
国家 | Argentina |
英文摘要 | The onset of the aggregation process of frozen droplets was investigated in laboratory settings. The experiments were conducted in a cloud chamber controlled at temperatures cooler than -40 degrees C, where pure water droplets freeze spontaneously without the need for ice nucleating particles. We present laboratory evidence supporting that the aggregation process can occur for frozen droplet sizes around 10m in diameter and at concentrations observed in the cloud chamber of 7020cm(-3), which can be found in some regions of anvil cirrus. The characteristics and morphology of the aggregates were examined in detail. Additional experiments performed with electrically charged droplets show that the aggregation processes can be significantly accelerated, suggesting that the mechanism of collision and adhesion could be related to electrical forces generated by different charge distributions or dipole interactions between the interacting ice surfaces. The current work aims at advancing our fundamental understanding of the aggregation process of frozen droplets, which is necessary for understanding the cloud microphysical processes. |
英文关键词 | atmospheric ice particles frozen drops aggregation process anvils |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425520200036 |
WOS关键词 | ICE CRYSTALS ; ELECTRIC-FIELDS ; CLOUD ; CIRRUS ; ANVIL ; MICROPHYSICS ; PARTICLES ; WATER ; CHARGES ; DROPS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32603 |
专题 | 气候变化 |
作者单位 | 1.Univ Nacl Cordoba, FAMAF, Ciudad Univ, Cordoba, Argentina; 2.IFEG CONICET, Cordoba, Argentina |
推荐引用方式 GB/T 7714 | Analia Pedernera, Debora,Avila, Eldo E.. Frozen-Droplets Aggregation at Temperature Below-40 degrees C[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(2):1244-1252. |
APA | Analia Pedernera, Debora,&Avila, Eldo E..(2018).Frozen-Droplets Aggregation at Temperature Below-40 degrees C.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(2),1244-1252. |
MLA | Analia Pedernera, Debora,et al."Frozen-Droplets Aggregation at Temperature Below-40 degrees C".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.2(2018):1244-1252. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论